Fiber fusion splicer and fiber fusion splicing method

Abstract

The invention discloses a fiber fusion splicer and a fiber fusion splicing method. The fiber fusion splicer comprises two rotatable fiber clips, a fiber cutting knife, a fiber end surface locating unit and a fiber fusion splicing unit. The two rotatable fiber clips are respectively used for fixing two fibers for fusion splicing. The fiber cutting knife is used for cutting the two fibers for fusion splicing so as to form two fiber end surfaces. The fiber end surface locating unit can display the structure of the fiber end surfaces. The fiber fusion splicing unit connects the fiber end surfaces of the two fibers for fusion splicing through fusion splicing. Each rotatable fiber clip is provided with a fiber groove used for accommodating the fibers for fusion splicing, a fiber pressing plate for pressing the fibers for fusion splicing in the fiber groove and fixing the fibers for fusion splicing, and an angular locating and rotating component which performs axial rotating and locating on the fiber end surfaces of the fibers for fusion splicing. The fiber fusion splicer is low in cost, easy to implement and easy to operate so that locating can be more visual and effectively without limitation of fiber types, and effective fusion splicing of different types of fibers can be performed.

Description

technical field [0001] The invention relates to an optical fiber fusion splicer and an optical fiber fusion splicing method, in particular to a general-purpose optical fiber fusion splicer capable of splicing ordinary optical fibers, linear polarization-preserving optical fibers, elliptic polarization-preserving optical fibers and other optical fibers with complex structures. Background technique [0002] Optical fiber fusion splicer is an important equipment or tool used in the production of optical fiber communication, optical fiber sensing and fiber laser equipment. At present, there are mainly two kinds of optical fiber fusion splicers on the market, one is ordinary optical fiber fusion splicer, and the other is linear polarization optical fiber fusion splicer. [0003] Ordinary optical fiber fusion splicers are widely used, and the market demand is relatively large, and the threshold for technology entry is relatively low. Now there are more than ten companies in China ...

AI Technical Summary

Problems solved by technology

At present, the linear polarization preserving optical fiber fusion splicer produced by Fujikura can actually only weld the general linear polarization optical fiber

However, there are dozens of types of similar linear polarization-preserving optical fibers and special-structure optical fibers currently in use. The shape and position of the core, birefringence, or stress distribution are different. The existing linear polarization-preserving optical fiber fusion And algorithm technology has been difficult to angularly locate the optical fiber, the positioning is often wrong

Fusion splicing between fibers of different structures is more difficult

As a result, there is a serious production bottleneck, and when the existing fusion splicer is applied to the actual optical fiber fusion, rework often occurs

[0006] In addition, the premise of positioning by lateral imaging in the prior art is that the structure of the optical fiber must be constant along the transmission axis, while the structure of the ellipse-preserving optical fiber (currently a commonly used optical fiber) changes with the length of the position (spiral type change), it cannot be realized by using the existing linear polarization-preserving fiber fusion splicer based on the principle of lateral imaging

[0007] Moreover, the general linear polarization-maintaining fiber fusion splicer has a very small space in the fusion splicing area, and a high-resolution microscope cannot be used. The magnification of the end face is not enough, and the image is blurred. Even through the improved polarization-maintaining fiber fusion splicer based on end face recognition, it is difficult to distinguish

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